We spread too much thanks to unsustainable technologies/ideologies and now that we're facing the consequences our excuse is "how will we continue living unsustainably"
Same answer as people who built cities in the middle of fucking deserts and complain about potential lack of water: you don't
This is even worse thought out, and really demonstrates a real lack of understanding of how the world works. Oh how humans work. You're one of us, and equally complicit as any human live today. So, maybe, rather than being this unearned smugness, you come up with an answer. Any idiot can identify the challenges, and shit on something.
Las Vegas exists, as do many other desert cities. So, this point makes no sense. Humans, harness the physics of the world around us, to shape our futures.
Same answer as people who built cities in the middle of fucking deserts and complain about potential lack of water: you don't